During the elementary-school years, a child's world expands dramatically to include not only their family and playmates but a widening circle of schoolmates and adults. In this enlarged environment, ...

"[F]or a living creature to have evolved rich capabilities of perception and categorization but to be constitutionally incapable of focusing any of that apparatus onto itself would be highly anomalous ...

This thing we call self-esteem affects the way we view ourselves and the world around us. It factors into the school curriculum, discipline practices, sports development, and even office management.